Machine for making corrugated paper.



1. T. FERRES. MACHINE FOR MAKING CORRUGATED PAPER.

APPLICATION FILED NOV. 19, 1912.

J. T. FERRES.

MACHINE FOR MAKING CORRUGATED PAPER.

APPLICATION FILED NOV. 19, I912. 1 Patented Apr. 13, 1915.

2 SHEETSSEEET 2.

. v ta JEFFREY. T. FEB/RES, or LOS ANGELES, CALIFORNIA.

MACHINE FOR MAKING CORRUGATED PAPER.

menace.

Application filed. November 19, 1912. Serial No.

To all whom it may concern:

Be it known that l[, JEFFREY T. Finance, a citizen of the United States, residing at Los Specification of Letters Patent.

Angeles, in the county of Los Angeles, in

the State of California, have invented certain new and useful Improvements in Machines for Making Corrugated Paper, of which the following is a specification.

My invention relates to a machine for making single faced corrugated paper board by corrugating a sheet of paper and attaching thereto by means of an adhesive aplain sheet of paper, and such invention pertains more particularly to the means for applying the adhesive in the operation of the machine.

One object of my invention is to provide means whereby the application of the adhesive is stopped and warning given the operator in case the paper should break or torn places or holes should occur therein, thereby assuring a perfect product.

Another object is to provide simple and ei'ficientmeans for governing the amount of adhesively delivered to the tank or pan of the machine.

Still other objects are to provide means whereby the adhesive is appliedto the paper in such manner that the amount thereof is 4 always plainly visible to the operator, and also to provide means whereby the adhesive is prevented from coming into contact with and smearing the corrugating rolls.

Other novel and advantageous features of construction and operation will be apparent from the description hereinafter given.

In the drawings Figure 1 is a front elevation of my machine with portions thereof broken away; Fig. 2 a vertical sectional plan on the line 2-2 of Fig. 1'; Fig. 3 a detail view of one of the gear wheels illustrating the manner of adjustment thereof upon its shaft, Fig/1 a section on the line H of Fig. 3, and Fig. 5 a detail of a modified orm of construction of plate or apron 27.

Referring to the particular embodiment of my invention as herein shown, the machine is provided with two similar end frames 1 which support the working parts Patented Apr. 131, 1915. 732,287.

have an eXtention 1 at one of their lower corners to serve as a support for the roll 4: supplying the plain sheet of paper which is to be applied to the corrugated sheet.

The end frames are provided with vertical slots 5 within which are received and supported the bearing blocks 6 and 7 of the two corrugating rolls 8 and 9. These rolls are mounted in these slots and are adjustable as by means of the adjusting screws 10, in the usual and well known manner. As in ordinary practice these corrugating rolls which mesh with each other and consequently corrugate the sheet of paper passing between them and also are hollow and adapted to be heated by any suitable heating fluid such as steam in the ordinary way Below the lowermost 'corrugating roll and also mounted within the (not shown).

slots 5 of the end frame is a plain roll 11- over which the plain sheet of paper passes just as it is being applied to the crowns of the corrugated sheet while still upon the lowermost corrugating roll.

By preference the plain roll 11 is grooved V Shelves 12 formed integral with or separate from the end frames are provided for supporting the pan or the adhesive which in practice is generally silicate.

same being normally held in place upon the tank 13 containing This pan is made so as to be readily removable for cleansing purposes theshelves by means of the dowel pins 14. The

amount or level of adhesive in the pan is controlled automatically by the means clearly illustrated in Fig. 2.

As shown a flexible hose or tube 15 made of soft rubber'leads from a source of supply of adhesive and extends into-the pan or tank, the outlet end thereof being submerged in adhesive so that air cannot have access to the inside of the tube to cause hardening of the adhesive.

A bracket 16 is secured to one of the walls or sides of the pan and provided .with an,

upwardly extending arm 16 to which is fulcrumed a lever 17 of the first order.

, of the float 19 when the level of adhesive in the pan has reached the predetermined point. When the level of the adhesive lowers in the operation of the machine the arm 20 is raised and the adhesive permitted to flow through the tube into the pan, which flow is interrupted when the desired amount has been added to the pan. The supply of the adhesive is consequently automatic.

A doctor roll 21 extendsinto the adhesive within the pan, such roll being suitably ournaled at itsehds in the end frames 1. Immediately above this doctor roll and within the slots 22 'in the end frame are mounted the bearing boxes 23 of the adhesive applying roll 24 which is adapted to receive the adhesive, for instance the adhe- SIVG, from the doctor roll, and in the present instance to apply it to the plain sheet of paper which is to be attached to the corrugated sheet as hereinafter explained.

In order to apply the adhesive transversely of the plain sheet at such places only Where the crowns of the corrugated sheet come into contact therewith I provide this adhesive roll with the series of teeth 24.

- The adhesive roll is adapted to be adjusted vertically in suitable manner as by means of-the adjusting screws 25 which cooperate with the bearing boxes 23 thereof. The doctor roll is provided with an adjustable scraper26 which is carried by a transverse bar 26 supported at its ends in the main frame 1.

Between the adhesive "applying roll 24 and the plain roll 11 is interposed a plate or apron 27 which is horizontally grooved at 28 and pivoted toward its upper side at 29 to the end frames, such plate depending between said rolls. In Fig. 5 is'shown a modlfied form of this plate or apron in whlch the plate 30 is provided at its top and bottom edges with the horizontal rollers of the coiled spring 39 bearing at one end against the lug 36 and 'at the other end against the solenoid. When the parts are in the normal position thus shown in Fig. 2 the plate or apron 27 is in a position to bring the facing sheet of paper into contact with the teeth 24 of the edhesive-applying roll, the proper adjustment bein obtained by means of the turnbuckle descr bed. The roll 24 is, in operation, in substantial contact with the doctor roll 21 and receives the adhesive therefrom upon the outer faces of its teeth. The sheet of paper does not pass between these two rolls but is presented by the plate or apron 27 to one side of the roll 24 which side may be termed the free side as distinguished from the part or side in contact with the doctor roll at any given time.

The solenoid 38 is in a suitable electrical j circuit which, in the present instance, includes the wire 40, switch 41, wire 42, and a source of electric energy such as the battery 43 and a series of metallic pieces or fingers 44 which are loosely mounted upon a horizontal rod 45 whose ends are fastened in blocks 46 of insulating material. These fingers 44 are so suspended that they tend to drop by gravity toward the corrugating roll 9 and to contact the same in case no paper is passing therethrough or in case any torn places or holes in the paper are presented. In case these fingers contact this roll the electric circuit is established through the wires described and through the roll 9 and thence to the frame of the machine and to the solenoid which is electrically connected with such frame. As a result the solenoid is energized and the armature rod 36 and associated parts attracted and drawn thereby to the right (Fig. 2) instantly withdrawing the-facing sheet from further contact with the adhesive applying roll. At the same; time the electrical alarm bell 47 which is also interposed in the described circuit is sounded and the alarm or warning thereby given to the operator of the condition. As is usual in machines of this character the metallic paper guides 48 are provided in grooves cut circumferentially in the corrugating roll 8 the same acting to hold the corrugated paper within the corrugations of the lowermost roll 9.

Describing the driving connections which may be of any desired character the power is applied to the pulley 49 secured to the shaft 50 of the corrugating roll 9. This shaft is provided with a gear 51 which meshes with the two gears 52 and 53, the former of which is secured to the shaft of the corrugating roll 8 and the latter of p which is secured to the shaft ofthe plain roll 11. The gear 53 meshes with an idler gear 54 secured to a horizontal shaft 55 mounted on the main frame, which latter gear in turn meshes with and drives a gear 56 secured to the shaft 57 of the doctor roll 21. The driving connections thus far described are located at the right hand side of the machine shown in Fig. 1'.- At the other end of the machine the plain roll is provided with a gear wheel 58 which is driven by a gear wheel 60 mounted on the extended shaft 61 of the doctor roll 21. As shown in detail in. Figs. 3 and 1 and for a purpose hereinafter explained, this'gear wheel 60 is adjustable upon the shaft 61 to which end such gear wheel is provided with i the two laterally extending lugs 62 arranged at one side of its axis. Through these lugs pass the two adjusting screws 63 which 00- operate with a lug 64 projecting from a collar 65 secured to the shaft 61. It will be understoodthat the gear wheel 60 is loosely mounted upon the shaft 61 and the connection therewith-is through the described lugs and adjusting screws. .By adjusting these screws the relative position of the gear wheel with regard to the shaft 61 may be adjusted.

Describing the operation of the machine and first following the course of the sheet to be corrugated, such sheet indicated at A leads from the Weber roll 3 over the idler rolls 66 and .67 and below the paper guides 48 and between the corrugating rolls 8 and 9 by which such paper is corrugated. The paper after passing between these'rolls is carried around one side of the lowermost roll 9 to a position in contact with the facing sheet B which isfed from the Web or roll 4 over the idler rolls 68 and 69 and over the plate or apron 27. While passing over this plate the paper receives the ad hesive from the toothed roll 24, the paste being thereupon applied in transverse strips which as hereinafter described, Will match or register exactly'With the crowns when reached in the further progress of this facing sheetlB. The facing sheet continuing bears upon the plain roll B and is applied with pressure to the crowns of the corrugated sheet still held within the lowermost corrugating roll 9, these crowns contacting the facing sheet at the points or lines where the adhesive has been applied. The .two sheets then emerge from "the machine as completed single faced corrugated paper board. In case the corrugated sheet should break or have a hole or torn place in it, the

electrical devices described will be called into action, with the result that the apron -27 will be drawn to the right. (Fig. 2) and likewise the facing strip will be withdrawn from contact with the adhesive applying rollso. that no adhesive will be applied under these conditions. This is a matter of advantage in that during the consequent stoppage of the machine the facing sheet is prevented from adhering to theadhesive applying roll and thereby prevented from be coming torn or damaged when the machine is started again.

It will be noted that the distance from the point where the toothed paste-applying roll applies the adhesive to the facing sheet B and from the point where the fingers 44- are adapted to contact the corrugating roll 9, is the same to the contact point of the rolls 9 and 11, With the result that no adhesive can get onto the con-ligating rolls in case the paper should break or is full of holes.

The object of providing the adjusting device for the sprocket wheel 56 as detailed in Figs. 3 and 4 is to have the strips or lines of adhesive applied to the facing or lining sheet by the toethed roll 24 come opposite to or in register with thehigh parts or crowns of the corrugated sheet as they pass between the rolls 9 and 11. An exact registration is obtained by adjusting this sprocket wheel in one direction or the other upon the shaft 57.

It will be understood that the driving connections describedare such that the pitch circumferenceof the rolls 8 and 9 travels at the same speed and that the outside circumference of the rolls 11, 21 and 24 all \travel at this same speed. Whether Wide or narrowpaper is run, no change is required to-be made in the adhesive applying mechanism as is the case in other machines for making corrugated paper board. Moreover, the described construction avoids the necessity of cutting circular grooves in the adhesive applying roll to accommodate the paper guides of wires as used on other machines which arrangement was wasteful of the adhesive which also hardened on the Wires and broke them. Furthermore, in my machine there is no shifting of a heavy adhesive pan required and the bearings of the rolls 21.11101 24 are far removed from the adhesive which in former machines got into the bearings and cut them out.

I claim: I

1. In a machine of the class described, the combination of means for corrugating a sheet of paper, mechanism for apply ng strips of adhesive to a facing sheet includ ng a longitudinally-toothed adhesive applying roll adapted toreceive adhesive on the outer facesof its teeth, said teeth being so spaced that the'adhesive strips may register with the corrugations of the *corrngated sheet, means for applying the facing sheet to the toothed roll to receive the strips of adheslve and means for applying the facing sheet to the corrugated sheet.

2. In a machine of the class described, the combination of corrugating rolls for corrugating a sheetof paper, mechanism for ap plying strips of adhesive to a facing strip including. a doctor roll and a longltudinallytoothed adhesive applying roll adapted to substantially contact with the doctorroll to thereby receive adhesive on the outer faces of its teeth from such roll, said teeth being so spaced that the adhesive strips may register with the corrugations of the corrugated sheet, means for applying the facing strip to the toothed roll, and means for applying the facing sheet to the corrugated sheet.

3. In a machine of the class described, the combination of means for corrugating a sheet vof paper, mechanism for applying strips of adhesive to a facing sheet including a longitudinally-toothed adhesive applying roll adapted to receive adhesive on the outer faces of its-teeth, said teeth being so spaced that the adhesive strips may register with the corrugations of the corrugated sheet, an

" adjustable plate over whose surface the facing sheet passes and which presents such facing sheet to a, free side of the adhesive applying roll to receive said strips of adheslve, and ,means for applying the facing sheet to the corrugated sheet.

4. In a machine of the class described, the

combination of rolls for corrugating a sheet of paper, means for applying a facing sheet thereto, a toothed roll for applying to the facing sheet strips of adhesive, the teeth of such roll being so spaced that the adhesive strips may register with'the corrugations of the corrugated sheet, and means for yieldingly presenting the facing strip to the toothed roll to receive said strips of adhesive.

5. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, and means for applying to the facing sheet of paper strips of adheslve adapted to register with the crowns of the corrugations of the corrugated sheet,

means wherebythe time of 'so applying the strips may be changed and means for apply- .ing the facing sheet to the corrugated sheet.

6. In a machine of the class described, the combination of corrugating rolls for corrugatlng a sheet of paper, a toothed roll-for applying to the facing sheet of paper strips of adhesive adapted to register with the crowns of the corrugations of the corrugated sheet, an apron over which the facing sheet passes and which has a groove opposite the toothed roll, means for supplying the ad-- hesive to the toothed roll and means for applying the facing sheet to the corrugated sheet.

. 7. In a inachine of the class described, the combination of corrugating rolls for corruroll for supplying adhesive therefrom to the toothed roll and means for applying the facing sheet to the corrugated sheet.

8. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, a toothed roll for applying to the facing sheet of paper strips of adhesive adapted to register with the crowns of the corrugations of the corrugated sheet, means for supplying the adhesive to the toothed roll, driving connections for said corrugating rolls and the toothed roll in cluding means for timing the same whereby the strips of the adhesive will register accurately with the crowns of the corrugations of the corrugated sheet and means for applying the facing sheet to the corrugated sheet.

I 9. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, a toothed roll for applying to the facing sheet of paper strips of adhesive adapted to register with the crowns of the corrugations of the corrugated sheet, means forsupplying the adhesive to the toothed roll, and driving connections for said corrugating rolls and the toothed roll including a gear wheel 56, shaft 57 on which it is loosely mounted, a sleeve 61 secured to the shaft and having a lug 60, said wheel having lugs 58, and adjusting screws passing through the lugs 58 and cooperating with lug 60 and means for applying the facing sheet to the corrugated sheet.

10. In a machine of the class described, thecombination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, means for withdrawing the facing sheet from the adhesive applying means and means for applying the facing sheet to the corrugated sheet.

11. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, means for automatically withdrawing the facing sheet from the adhesive applying electrically controlled means for automatica-lly withdrawing the facing sheet from the adhesive applying means and means for applying the facing sheet to the corrugated sheet.

13.- In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, a movable plate over which the facing sheet passes before being applied to the corrugated sheet and which presents the same to the adhesive applying means, means for treason r operating the plate and means for applying the facing sheet to the corrugated sheet.

14. In a machine of the class described,

the combination of corrugating 'rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, a mdvable plate over which the facing'sheet passes and which presents the same to the adhesive applying means, an operating rod connected with the plate for withdrawing the same, an electrical device for actuating the rod, a series of fingers arranged in the path of the paper and arranged in the circuit of said device, any one of said fingers being adapted to close the circuit in case the sheet is torn or has a hole in it and means for applying the facing sheet to the corrugated sheet.

'15. In a machine of the class described,

the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive-to the facing sheet of paper, a movable plate over which the facing sheet passes and which presents the same to the adhesive applying means, an operating rod connected with the plate for withdrawing the same, an electrical device for actuating the rod, a series of fingers cooperating with one of the corrugating rolls and arranged in the circuit ofsaid device, any one of said fingers being adapted to close the circuit in case the corrugated sheet is torn or has a hole in it and means for applying the facing sheet to the corrugated sheet. v

16. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, a movable plate over which the-facing sheet passes and which presents the'same tothe adhesive applying means, an operating rod connected with the plate for withdrawing the same, an electrical device for actuating the rod, an idler'roll over whichthe paper passes to the corrugating rolls, a series of fingers cooperating with one of the rolls and arranged in the circuit of said electrical de- "vice, any one of said fingers being adapted to close the circuit in case the sheet is torn or has a hole. in it and means for applying the facing sheet to the corrugated sheet.

17. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet ofpaper, a movable plate over which the facing sheet passes and which .presents the same to the adhesive applying means,

an operating rod connected with the plate for withdrawing the; same, an electrical device for actuating the rod, a series of fingers cooperating with'one of the corrugating rolls and arranged in the cir cuit of said device, any one of said fingers being adapted to close the circuit in case the .plying adhesive to the facing corrugated sheet is torn or has a hole in it,

and an alarm device also interposed in said circuit and means for applying the facing sheet to the corrugated sheet.

.18. In-a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, a movable plate over which the facing sheet passes and which presents the same to the adhesive applying means, means for adjusting the degree 'of movement of the plate and means for applying the facing sheet to the corrugated sheet. t

19. In a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for apsheet of paper, a movable plate over which the facing sheet passes and which presents the same to the adhesive applying means, connected with the plate, means for'adjusting the length of the rod to vary the degree of movement of the plate and means for applllying the facing sheet to. the corrugated s eet.

20. lln a machine of the class described, the combination of corrugating rolls for corrugating a sheet of paper, means for applying adhesive to the facing sheet of paper, a movable plate over which the facing sheet passes and which presents the same to the adhesive applying means, an operating rod connected with the plate and constituting the core of a solenoid, a solenoid, an electrical circuit for the solenoid, means dean operating rod rugating a sheet of pa er, means for applying adhesive to the fa ing sheet of paper, a movable plate over which thefacing sheet pendent upon the presence of holes in the passes before being applied to the 'corru gated sheet and which presents the same to the adhesive applying means, electrically operated means arranged in an electrical oil"- cuit for moving said plate including fingers cooperating with one of the corrugatm rolls and adapted to close said circuit, sai

fingers and the adhesive applying means being arranged substantially the'same dist'ance from the point where the two sheets are brought together and means for apply 'ing the 'facing sheet to the corrugated sheet.

22. In a machine of the class described,

' the combination of corrugating rolls for corrugating-a sheet of paper, a plain roll cooperating, with one of the corrugating rolls, v

an adhesive applying roll arranged adjacent the plain roll, means interposed between,

the plain rolland theadhesive roll, over which means the facing paper passes and by which it is presented to the adhesive roll, the facing paper and corrugatedsheet passing between a corrugating roll andthe plain roll and being attached to each other thereat. I

23. In a machine of the class described, the combination of corrugating rolls for cor rugating a sheet of paper, a plain roll cooperating with one of the corrugating rolls, an adhesive applying roll arranged adjacent the plain roll, a movable plate interposed between the plain roll and the adhesive roll,

over which plate the facing paper passes and by which it is presentedto the adhesive roll, means for operating the plate, the facing paper and corrugated sheet passing beplain roll and the adhesive roll, over which plate the facing paper passes and by which it is presented to the adhesive roll, means connected with the lower end of the plate for operating-it, the facing paper and corrugated sheet passing between a corrugating roll and the "plain roll and being attached to each other thereat. 7

25. In a machine of the class described, the combination of corrugating IOllS'fOI corrugating a sheet of paper means for applying toa facing sheet of paper strips of adhesive adapted to register with the crowns of the corrugations of the corrugated sheet, and a plain roll cooperating with one of the coiprugating rolls, the corrugated sheet and facingsheet passing between the plain roll and the adjacent corrugated roll, said plain roll having a series of circumferential grooves at intervals along its length to prevent such pressure along the entire Width of the sheets that might squeeze out the adhesive.

JEFFREY T. FERRES.

ROBERT DOBBERMAN. 

